A hanging (aborted) batch is generally caused by a failed rule, so I guess your merging rule is having an issue. You should have a quick look into the batches task log file inside your batch directory <task profilename>.log where you're executing the merge/convertion rule to figure out what went wrong.

Here some possible reasons for failure:

Sometimes people are assigning an action to the wrong level. E.g. dcpdf_MakePDFDoc() for example has to be assigned to the Document node and not to the page node.

or

the input files provided to the conversion action are inappropriate and cannot be processed e.g. providing a colored or gray scale image to imagefix.

You wrote: "When I try to merge 2 different pages (pdf files ot tif and pdf) to a single pdf ..".

Not sure if I understood the information in the brackets correctly but does that mean that you're trying to merge a PDF + TIF into a PDF ? If so, which action are you using as I'm not aware of any such action allowing processing mixed file formats in a single step ..

About the hanging that I had mentioned earlier, it is happening only when I am having multiple pdfs to be merged.

If I am scanning mutilple tiff files which have to be merged to a single pdf, it works without any issues, but when I try to merge 2 pdfs it goes to hung state.

My issue is that I have a separator sheet for each document from which my property values are fetched. But when I try to merge the separator sheet with my actual document it fails when both of them are pdfs. But if my separator and actual document is tif, it is working correctly, merging them to a single pdf and is exporting as expected. Is there any way that we can merge pdfs before exporting.

this requested feature is reasonable.as an amature in image programming ,Im wondering if is it possible to integrate mulitple pdf /tiff processing function with the support of pdf merge dll or tiff scanning component ?I' ve developed related feature in my windows project, not sure it will work for VSCAN.

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this requested feature is reasonable.as an amature in image programming ,Im wondering if is it possible to integrate mulitple pdf /tiff processing function with the support of pdf merge dll or tiff scanning component ?I' ve developed related feature in my windows project, not sure it will work for VSCAN.

thanks for sharing, that's awesome but somewhat overpriced for me who will just use it only once, do you have some cheaper or even free versions, any suggestion will be appreciated!